| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| Swedish | Indo-European | Svenska | sv | swe | swe | swe | ||
| Sundanese | Austronesian | Basa Sunda | su | sun | sun | sun | ||
| Spanish | Castilian | Indo-European | Español | es | spa | spa | spa | |
| Southern Sotho | Niger–Congo | Sesotho | st | sot | sot | sot | ||
| Somali | Afro-Asiatic | Soomaaliga; af Soomaali | so | som | som | som | ||
| Tajik | Indo-European | тоҷикӣ; toçikī; تاجیکی | tg | tgk | tgk | tgk | ||
| Slovak | Indo-European | Slovenčina; Slovenský Jazyk | sk | slk | slo | slk | ||
| Shona | Niger–Congo | chiShona | sn | sna | sna | sna | ||
| Gaelic | Scottish Gaelic | Indo-European | Gàidhlig | gd | gla | gla | gla | |
| Sango | Creole | yângâ tî sängö | sg | sag | sag | sag |